The Dormer Pramet C50 15.0mm HSS-E Ball Nose Slot Drill is a compact, extra-short two-flute end mill designed for precise copy milling and slotting in steel and copper alloys. Built on cobalt-based HSS-E with a bright finish, it delivers reliable performance in tight spaces with a secure, flat-shank geometry.

• Diameter: 15 mm
• Flutes: 2-flute configuration for efficient cutting and chip evacuation
• Ball-nose radius: 7.5 mm full profile radius for smooth, rounded contours
• Length of cut: 16 mm
• Overall length: 73 mm
• Reach with neck relief: 27.5 mm
• Shank: 12 mm Weldon shank with a flat for secure mounting
• Material & finish: Cobalt-based HSS-E with a bright finish for increased wear resistance
• Helix & rake: 30° helix and 12° rake angle for stable cutting and copy milling
• Standards: DIN 327 D
• Applications: Copy milling in free-machining steel and copper or copper alloys; suited for slot drilling and precise contouring

This tool is ideal for scenarios requiring precise, rounded pockets and tight-slot work where a short, rigid tool can maintain accuracy in challenging materials. The cobalt HSS-E construction offers extended wear life in copper alloys and free-machining steels, while the flatted Weldon shank ensures firm, rotation-free engagement in your chuck or collet. Use it for fine-detail milling, contouring, and finishing passes where dimensional fidelity and surface smoothness matter.